%0 Journal Article %T Stronger Self-Focusing of Hermite-Cosh-Gaussian (HChG) Laser Beam in Plasma %A Niti Kant %A Vikas Nanda %J Open Access Library Journal %V 1 %N 5 %P 1-8 %@ 2333-9721 %D 2014 %I Open Access Library %R 10.4236/oalib.1100681 %X
The relativistic self-focusing of HChG beam
in the plasma has been investigated theoretically using WKB and paraxial ray
approximation for mode indices 0, 1 and 2 for different values of pulse
amplitude, normalized plasma density and decentred parameter. The plot between
beam width parameter f and the normalized length ¦Î for different value of
normalized density has been reported and indicates the enhancement of the
self-focusing phenomena of the laser beams in the plasmas. Also the focusing
and defocusing of HChG beam in the plasma having dependency on decentred
parameter and frequency of incident laser beam is reported.